The Perennial Philosophy

Aldous Huxley's 1945 anthology arguing that beneath the doctrinal differences of the world's mystical traditions lies a single recurring metaphysics — that all reality is the manifestation of a divine ground, that the human soul can know this ground directly, and that this is the highest end of human life. Each chapter pairs his exposition with curated source quotations from Eckhart, Rumi, Lao Tzu, the Cloud of Unknowing, and the Upanishads.

Originally published by Harper & Brothers in New York and by Chatto & Windus in London in 1946. The book is organised into twenty-seven topical chapters — "That Art Thou", "The Nature of the Ground", "Charity", "Self-Knowledge", "Time and Eternity", and so on — in which Huxley's connecting commentary frames passages from Meister Eckhart, Rumi, the Bhagavad Gita, the Diamond Sutra, the Cloud of Unknowing and Lao Tzu.

Contents

Reception

The book that, more than any other, popularised the term "perennial philosophy" in English and seeded the comparative mysticism strand of mid-century religious studies. Influence on later writers — Huston Smith, Joseph Campbell, the Eranos circle — is direct and acknowledged. Academic critics including Frithjof Schuon (sympathetically) and Steven Katz (less so) have argued that Huxley's project assumes the universalism it claims to discover, projecting Vedanta-shaped expectations onto traditions whose central claims differ. Reads now as both a primary source and an artefact of mid-20th-century universalist optimism.

Frequently asked

What is The Perennial Philosophy about?

It is Aldous Huxley's 1945 argument that the world's mystical traditions share a single underlying metaphysics: that all reality is the manifestation of a divine ground, that the soul can know this ground directly, and that this is the highest end of human life. Each chapter pairs Huxley's commentary with source quotations from Eckhart, Rumi, Lao Tzu, the Upanishads, and the Cloud of Unknowing.

Where does the phrase "perennial philosophy" come from?

The Latin philosophia perennis was used by Agostino Steuco in 1540 and later by Leibniz, but it was Huxley's 1945 book that gave the phrase its modern Anglophone currency and tied it specifically to comparative mysticism rather than Renaissance Platonism.

What do critics say about Huxley's project?

Scholars including Steven Katz have argued that the book assumes the universalism it claims to discover, projecting Vedanta-shaped expectations onto traditions whose central claims differ. Sympathetic critics such as Frithjof Schuon and Huston Smith accept the framing while refining it.